Joseph savoie



me J, smo-IE.

' DOOR LOCK..

No. QSL-142. Pmmdquly 1o, 1883.

UNITED STATES trice.

Partnr QOSEPH SAVOIE, OF ST. MARCEL, QUEBBC, ASSIGNOR TO EXAVIER BRISSON AND LOUIS BRISSON, OF ST. GERIWIAIX DE GBANTHAIWI. CANADA.

lDOOR-LOCK.

SPECIFICATION forming part of Letters Patent No4 81,142, dated July 1o, ieee.

Application lilcd December f2, 1882., (Model.) Parented'n Canada September 30, 1F81, NoA 13,495,

To @ZZ whom 1' t may concern.-

Be it known that l, J osnrH Savoie, of St. Marcel, in the Province of Quebec, in lthe Dominion of Canada, have invented certain new aud'useful Improvements in Door-Locks, oi'

which the following is a specification.

In the accompanying drawings, Figure 1 is a perspective view of the lock having the cover plate removed to shor the Working mechanism. Fig. 2 is a geometric view of the same. Figs. 3, 4, 5, 6, and 7 are details of various parts of the mechanism.

The object of my invention is to provide a lock that will afford greater security than has hitherto been obtainable, by constructing and arranging the Working parts so that the lock will throw three bolts instead of one, usually provided on locks in common use, and also that it will necessitate tlie use of two separate keys to unlock the same.

A is the loclecasiiigand A the face-plate.

Bis the principal bolt held in suitable guides g g. It is provided on each side with a cani, b, against which bear the cam-headed auxiliary bolts B B', by means of suitable springs, S Si. These bolts are at a right angle to the bolt B, and are extended upward and downward by means of the rods R R, hooked into the bolt ends and sunk into suitable covered grooves in the door, their ends being provided with squares B2, acting as bolts.

B3 is a secondary bolt in the rear of the lock, Working in suitable guides, [jl ,f g* g5, and is pushed by a spring, S3, `against the holt B, which is provided with. ahole, b', engaging the bolt B3 when in position to lock, and thereby preventing any further movement of the bolt B. It is desirable that the guide g5, through which the locking end of the bolt B3 Works, should be set close to the bolt B. The peculiar construction of the bolt B3 is apparent from the drawings. It is acted upon directly by an auxiliary key inserted through the hole K, and the cani-notch b5 may be made of any desired section to suit a particular key. Another secondary bolt, B4, engages the bolt B3 in such a manner that the latter cannot be moved by the key unless the former has been previ ously Withdrawn and the square 67 disengaged, 5o the notch L enabling thereby the bolt Ba to ,ner that a longitudinal pressure on the bar C will push the bolt B4 against the pressure of the spring S4 out of engagement withthe bolt- 6o B1 and allow the latter to be disengaged from Y the bolt B,Which is then free to be drawn back by the principal key worked from the double key-hole K, and engaging the bolt by the camnotch b2, having, previously to acting on. the bolt, come in contact with the cani end c'Z of the bar O and pushed the same back, causing the bolt B* to disengage the bolt- B" to allow the auxiliary key to act.

L is the door-latch. It is guided in suitable I guides, g, pushed outward by the spring S5, andwithdrawn by the lever Z2 on the spindlehub L', which is actuated in the usual manner by a square spindle, to which the knobs or han dles are secured. The levenarm Zl engages lthe lug Z on the latch-bar. Another arm,l Z3, engages the shoulder b in the recess. D* on the bolt B to push the same out when locking Witl1- out affecting the bolt when the hub L isturned in the opposite direction. The latch-bar L also carries a bar, l', barring the way of the principal key until the latch is drawn back. The end of this bar may be shaped to admit only a particularly-shaped key to enter and pass; and it will be observed that the latch must be drawn back before the key can be inserted on the proper side of the bar Z to allow it to 'have access to the cams. To open the lock, the latch L must be drawn back to move the bar Z on the other side of the key-hole. 9o The principal key is then inserted, and when turned Will push back the bar C; then insert the auxiliary key and disengage the secondary bolt B, when renewed pressure ou theprincipal key will Withdraw the bolt and open the lock. 9 5 To lock, turn the latch in the opposite direc tion, when the leveirarm 13 will push out the bolt B.

I claim as my invention- 1. The combination of the casing A, bolt B. roo

auxiliary bolts B', at a right angle with B, and Worked by the cams b and the springs SSl, the

secondary bolt B3, actuated by spring S3 and' auxiliary key, and engaging and securing the bolt B, the secondary bolt B", engaging the bolt B3, the spring S" and the cani c, cam-bar C, with cams c c2, said bar C acted upon by the principal key, latch L, having lug Z, actuated by the spring S, and spindle-hub L, having lever Z2 to engage lug Z and lever Z3 to engage the bolt B.

2. The combination of the bolt B and auxiliary bolts B, actuated by cams on the bolt B and by springs, the extensions R and bolt ends B2, the bolt B being actuated in any suitable manner and contained in asuitable casing.

3. The combination of the secondary bolt B3, actuated by a spring and by an auxiliary key and engaging the principal bolt, and secondary bolt B4, actuated by a spring and by a cam, c', i 2o on a bar, C, actuated by the principal key.

Signed at St. Marcel this 28th day of October, 1882.

his JOSEPH savonaI mark vWitnesses:

J. H. BOURBONNIRE, L. BRIssoN. 

